MATLAB: How to define each case of the choice list in a uitable (GUI) and put IF function for each one

choice list tableMATLAB

I made a matlab gui that have two uitables, one of them have choice list format on its cells but I dont know how define each case of choice list and put IF function for each one. In other words I want apply numbers to second uitable from another gui with dependency on cases in the choice list of first uitable.

Best Answer

Hi Omid,

You can try below this code I have written some commands on it.

    classdef myuitable  < handle
          properties
              guiHandles
              table1_data
              table2_data
              selectedRows
              selectedColumns
          end
          methods
              function obj = myuitable
                  colNames   = {'Load1','Load2','Load3'};
                  rowNames   = {'XLC01','XLC02','XLC03','XLC04','XLC05'};
                  colFormat1 = {'Selection1','Selection2','Selection3','Selection4'};
                  colFormat2 = {'1','2','3'};
                  C    = cell(5,1);
                  C(:) = {'NaN'};
                  table1Data = [C,num2cell(nan(5,2))];
                  table2Data = num2cell(zeros(5,3));
                  obj.guiHandles.mainGUI = figure(...
                      'units'      , 'normalized',...
                      'Position'   , [0.2 0.2 0.65 0.5],...
                      'NumberTitle', 'off',...
                      'Name'       , 'My uitable App',...
                      'Toolbar'    , 'none',...
                      'MenuBar'    , 'none' ...
                      );
                  obj.guiHandles.table1 = uitable(...
                      'Parent'                , obj.guiHandles.mainGUI,...
                      'units'                 ,'normalized',...
                      'Position'              , [0,0.7,0.3,0.3],...
                      'ColumnName'            , colNames,...
                      'RowName'               , rowNames,...
                      'Data'                  , table1Data,...
                      'ColumnEditable'        ,[true,true,false],...
                      'ColumnFormat'          ,{colFormat1,colFormat2},...
                      'CellEditCallback'      , @obj.table1CellEdited,...
                      'CellSelectionCallback' , @obj.table1CellSelected...
                      );
                  obj.guiHandles.table2 = uitable(...
                      'Parent'    , obj.guiHandles.mainGUI,...
                      'units'     ,'normalized',...
                      'Position'  , [0.5,0.7,0.3,0.3],...
                      'ColumnName', colNames,...
                      'RowName'   , rowNames,...
                      'Data'      , table2Data...
                      );
                  obj.table1_data = table1Data;
                  obj.table2_data = table2Data;
              end
              function table1CellEdited(handleObj,source,eventdata)  % First three input explained in cell selected callback
                  % you can either use varargin, or three different inputs like
                  % above.
                  %%small check for cell selection works correctly
                  selectedIndicesSavedInObjectProperty = [handleObj.selectedRows, handleObj.selectedColumns];
                  selectedIndicesInEventData = eventdata.Indices;
                  if isequal(selectedIndicesSavedInObjectProperty,selectedIndicesInEventData)
                      disp('Indices are the same');
                  else
                      disp('Indices are not the same');
                  end
                  %%Now we can create some cases for selections
                  if handleObj.selectedColumns == 1 % if your selected column is first column and any data changed here
                      userSelection = eventdata.EditData;
                      currentTable2Data = handleObj.guiHandles.table2.Data;
                      switch userSelection
                          case 'Selection1'
                              currentTable2Data(handleObj.selectedRows,handleObj.selectedColumns) = cellstr(eventdata.NewData);
                          case 'Selection2'
                              currentTable2Data(handleObj.selectedRows,handleObj.selectedColumns) = cellstr(eventdata.NewData);
                          case 'Selection3'
                              currentTable2Data(handleObj.selectedRows,handleObj.selectedColumns) = cellstr(eventdata.NewData);
                          case 'Selection4'
                              currentTable2Data(handleObj.selectedRows,handleObj.selectedColumns) = cellstr(eventdata.NewData);                    
                      end
                      newTable2Data = currentTable2Data;
                      handleObj.guiHandles.table2.Data = newTable2Data;
                  elseif handleObj.selectedColumns == 2 % if your selected column is second column and any data changed here
                      userSelection = eventdata.EditData;
                      currentTable2Data = handleObj.guiHandles.table2.Data;
                      switch userSelection
                          case '1'
                              currentTable2Data(handleObj.selectedRows,3) = cellstr(eventdata.EditData); % You can define any value to any cell here. I have chosen to change 3rd column of second table
                          case '2'
                              currentTable2Data(handleObj.selectedRows,3) = cellstr(eventdata.EditData);
                          case '3'
                              currentTable2Data(handleObj.selectedRows,3) = cellstr(eventdata.EditData);
                      end
                      newTable2Data = currentTable2Data;
                      handleObj.guiHandles.table2.Data = newTable2Data;
                  else
                      % Do nothing
                  end
              end
              function table1CellSelected(varargin)  % you will always get 3 inputs for the callback functions automatically
                  % when mouse clicked to any cell on your uitable this function
                  % automatically called by your main class.
                  handleObj = varargin{1};  % first  input is always an instance of your class object (myuitable)
                  source    = varargin{2};  % second input is always an instance of the GUI item(uicontrol,uiable) object (eg. a table, a button, etc...)
                  eventdata = varargin{3};  % third  input is wlways eventdata object whic represents what happened to which source
                  % eventdata gives you the details about click event(eg.Indices)
                  handleObj.selectedRows    = eventdata.Indices(1); % eventdata.Indices gives you a [x y], first value row number, second is column number.
                  handleObj.selectedColumns = eventdata.Indices(2);
                  % now you saved the selected information in your object
                  % property. We will use this when data changed in your table.
              end       
          end
      end

Related Solutions

MATLAB: How to create the datas of third uitable by selecting a data in 1st uitable and a data in 2nd uitable

There are several ways to communicate information between different UI elements. Here I am describing one of them. The key point is to understand the Parent and Children relation between MATLAB graphics objects. In your example, three tables are the Children of the figure window in which they are located. The easiest way for communication among several Children object is through parent object (in your case the figure window). Fortunately, in MATLAB, each graphics Object has a property called UserData, which MATLAB never uses and it is there to allow a user to store its own data. Understanding this. Here is a basic sketch what you can do,

table1 = uitable(...);  % table1 is handle to first table
table2 = uitable(...);  % file ... according to your table contents
table3 = uitable(...);
f = table1.Parent; % table2.Parent; table3.Parent; are all valid, since all have same parent
f.UserData.tab1 = table1;   % populate the 'UserData' field with table handles.
f.UserData.tab2 = table2;   % now all tables can access other like 
f.UserData.tab3 = table3;   % this: table1.Parent.UserData.table3.Data . Here table 1 is accessing table 3 Data field.

Now the next issue is how can we know, which cell of each table is selected. Here we will use CellSelectionCallback. The callback function will also set some fields in UserData property of figure f so that other tables can also access it. It can be done like this

f.UserData.tab1CurrentCell = [];
f.UserData.tab2CurrentCell = [];
f.UserData.tab3CurrentCell = [];

and then define callbacks like this

function table1CellSelectionCallBack(HObj, event)
  % This function will be called when a cell on table 1 is selected. Therefore first we
  % should save the value in 'UserData' so that other table can find updated value when they check.
  HObj.Parent.UserData.tab1CurrentCell = event.Indices;
    % to know current selection of table 2 and 3 do
    currentSelectTable2 = HObj.Parent.UserData.tab2CurrentCell;
    currentSelectTable3 = HObj.Parent.UserData.tab3CurrentCell;
    % do whatever computation you want
    % to change the value of some other table do
    HObj.Parent.UserData.tab3.Data = []; % write value to table 3.
end

Similar callbacks can be written for table 2 and table 3 CellSelectionCallback. For more details on this topic, refer to my this answer.

MATLAB: Error set data of table by using eventdata.Indices inside CellSelectionCallback

hi everyone,

i solved that Problem and here is how i did that.

if someone wants to click on any casket of the table and get its indices and make a changes(somewhere with a Funktion on the the same table) and set that table, he should use CellEditCallBack instead of CellSelectionCallback to avoid that Problem which is:

Index exceeds matrix dimensions.
Error in GUI1>table_CellSelectionCallback (line 3197)
row_s = eventdata.Indices(1,1);

Note: the column, which you wanna click on, should be Editable.

so you should first set the column. set(handles.table.'ColumnEditable', 'On')

Best Answer

Related Solutions

MATLAB: How to create the datas of third uitable by selecting a data in 1st uitable and a data in 2nd uitable

MATLAB: Error set data of table by using eventdata.Indices inside CellSelectionCallback

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